rear speaker, except 6" round rear single seat speaker (wiring from rear speaker wire to... see morerear speaker, except 6" round rear single seat speaker (wiring from rear speaker wire to speaker) Use when installing replacement or aftermarket speakers. Made with correct connector for hook-up to current GM replacement speaker and correct connector for connection to original wiring, or cut off connector for hook-up to current GM replacement speaker and solder wires directly to aftermarket speaker.